/* ==========================================================================
   Fisioverse Design System v3 - Base & Utilities
   Import order: tokens.css -> base.css -> layout/page CSS.
   Rules: 44px touch targets, visible focus, no colour-only state, AA text.
   ========================================================================== */

.fs-scope, .fs-scope *, .fs-scope *::before, .fs-scope *::after { box-sizing: border-box; }

.fs-scope {
    font-family: var(--fs-font-body);
    font-size: var(--fs-body-size);
    line-height: 1.55;
    color: var(--fs-body);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.fs-scope h1, .fs-scope h2, .fs-scope h3, .fs-scope h4 {
    font-family: var(--fs-font-display);
    font-weight: 600;
    color: var(--fs-ink);
    letter-spacing: -0.015em;
    margin: 0;
    line-height: 1.15;
    text-wrap: balance;
}

.fs-scope h1 { font-size: var(--fs-title-size); }
.fs-scope h2 { font-size: var(--fs-heading-size); }
.fs-scope h3 { font-size: 17px; }
.fs-scope h4 { font-size: var(--fs-body-size); }
.fs-scope p { margin: 0; }
/* Anchors that are buttons/badges/rows carry their own colour contract.
   :where() keeps specificity at (0,1,1) but excludes them, so a
   <a class="fs-btn fs-btn--primary"> never ends up blue-on-blue. */
.fs-scope a:where(:not(.fs-btn, .fs-badge, .fs-list__row, .fs-avatar)) { color: var(--fs-primary); text-decoration: none; }
.fs-scope a:where(:not(.fs-btn, .fs-badge, .fs-list__row, .fs-avatar)):hover { color: var(--fs-primary-hover); text-decoration: underline; text-underline-offset: 3px; }
.fs-scope a.fs-badge { text-decoration: none; }

/* Theme-aware document chrome (the layouts paint their own surfaces; this
   keeps overscroll, dialogs and native controls in step). */
html[data-theme="dark"], html[data-theme="dark"] body { background-color: var(--fs-bg); color: var(--fs-body); }
html[data-theme="light"] body { background-color: var(--fs-bg); color: var(--fs-body); }
.fs-scope button { font-family: inherit; }
.fs-scope :focus-visible { outline: none; box-shadow: var(--fs-shadow-focus); border-radius: var(--fs-radius-xs); }
.fs-scope ::selection { background: var(--fs-primary-soft); color: var(--fs-ink); }

.fs-scope .sr-only, .fs-sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---- Layout -------------------------------------------------------------- */

.fs-container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: var(--fs-space-6); }
.fs-container--narrow { max-width: 720px; }
.fs-stack { display: flex; flex-direction: column; }
.fs-row { display: flex; align-items: center; }
.fs-row--between { display: flex; align-items: center; justify-content: space-between; }
.fs-wrap { flex-wrap: wrap; }
.fs-grow { flex: 1 1 auto; min-width: 0; }
.fs-gap-1 { gap: var(--fs-space-1); }
.fs-gap-2 { gap: var(--fs-space-2); }
.fs-gap-3 { gap: var(--fs-space-3); }
.fs-gap-4 { gap: var(--fs-space-4); }
.fs-gap-5 { gap: var(--fs-space-5); }
.fs-gap-6 { gap: var(--fs-space-6); }

/* ---- Type utilities ------------------------------------------------------ */

.fs-eyebrow { display: inline-flex; align-items: center; gap: var(--fs-space-2); font-size: var(--fs-caption-size); font-weight: 500; color: var(--fs-muted); }
.fs-muted { color: var(--fs-muted); }
.fs-muted-strong { color: var(--fs-body); }
.fs-ink { color: var(--fs-ink); }
.fs-tabular { font-variant-numeric: tabular-nums; }
.fs-ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fs-caption { font-size: var(--fs-caption-size); }
.fs-fine { font-size: var(--fs-fine-size); }
.fs-lead { font-size: var(--fs-lead-size); line-height: 1.5; }
.fs-kicker { font-size: var(--fs-caption-size); font-weight: 600; color: var(--fs-primary); }
.fs-num { font-family: var(--fs-font-display); font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; color: var(--fs-ink); }

/* ---- Buttons --------------------------------------------------------------
   One grammar: primary (filled), secondary (outlined), ghost (quiet), dark
   (on dark surfaces), danger. Press = opacity + translateY(1px), never scale. */

.fs-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--fs-space-2);
    min-height: var(--fs-touch); padding: 0 var(--fs-space-5);
    border: 1px solid transparent; border-radius: var(--fs-radius-sm);
    font-family: var(--fs-font-body); font-size: var(--fs-body-size); font-weight: 600; line-height: 1;
    cursor: pointer; text-decoration: none !important; white-space: nowrap;
    transition: background-color var(--fs-transition-fast), border-color var(--fs-transition-fast), color var(--fs-transition-fast), box-shadow var(--fs-transition-fast), transform var(--fs-transition-fast);
    user-select: none; -webkit-tap-highlight-color: transparent;
}
.fs-btn:active { transform: translateY(1px); }
.fs-btn:disabled, .fs-btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; pointer-events: none; }
.fs-btn:focus-visible { box-shadow: var(--fs-shadow-focus); }

.fs-btn--primary { background: var(--fs-primary); color: var(--fs-on-primary); }
.fs-btn--primary:hover { background: var(--fs-primary-hover); color: var(--fs-on-primary); }
.fs-btn--primary:active { background: var(--fs-primary-active); }

.fs-btn--secondary { background: var(--fs-canvas); color: var(--fs-ink); border-color: var(--fs-hairline-strong); }
.fs-btn--secondary:hover { border-color: var(--fs-ink); color: var(--fs-ink); background: var(--fs-canvas); }

.fs-btn--ghost { background: transparent; color: var(--fs-body); }
.fs-btn--ghost:hover { background: var(--fs-surface-2); color: var(--fs-ink); }

.fs-btn--soft { background: var(--fs-primary-soft); color: var(--fs-on-primary-soft); }
.fs-btn--soft:hover { background: var(--fs-primary-soft-hover); color: var(--fs-on-primary-soft); }

.fs-btn--dark { background: var(--fs-dark-3); color: var(--fs-on-dark); border-color: var(--fs-dark-hairline-strong); }
.fs-btn--dark:hover { background: var(--fs-dark-3-hover); color: var(--fs-on-dark); }

/* Sits on dark stages/gradients: always a light chip with dark ink so the
   label stays legible regardless of the active theme. */
.fs-btn--on-dark { background: #FFFFFF; color: #0B1530; }
.fs-btn--on-dark:hover { background: var(--fs-on-dark-btn-hover); color: #0B1530; }

.fs-btn--danger { background: var(--fs-danger-soft); color: var(--fs-danger-text); }
.fs-btn--danger:hover { background: var(--fs-danger-soft-hover); color: var(--fs-danger-text); }

.fs-btn--lg { min-height: 52px; padding-inline: var(--fs-space-6); font-size: 16px; border-radius: var(--fs-radius-md); }
.fs-btn--sm { min-height: 36px; padding-inline: var(--fs-space-4); font-size: var(--fs-caption-size); border-radius: var(--fs-radius-xs); }
.fs-btn--block { width: 100%; }
.fs-btn--pill { border-radius: var(--fs-radius-pill); }
.fs-btn--icon { width: var(--fs-touch); min-height: var(--fs-touch); padding: 0; border-radius: var(--fs-radius-sm); background: transparent; color: var(--fs-body); }
.fs-btn--icon:hover { background: var(--fs-surface-2); color: var(--fs-ink); }
.fs-btn--icon.fs-btn--sm { width: 36px; }
.fs-btn--icon.fs-btn--on-dark { background: var(--fs-dark-hairline); color: var(--fs-on-dark); }
.fs-btn--icon.fs-btn--on-dark:hover { background: var(--fs-dark-hairline-strong); color: var(--fs-on-dark); }
.fs-btn--icon[aria-pressed="true"] { background: var(--fs-primary-soft); color: var(--fs-on-primary-soft); }

/* ---- Cards & panels ----------------------------------------------------- */

.fs-card {
    background: var(--fs-canvas); border: 1px solid var(--fs-hairline);
    border-radius: var(--fs-radius-lg); padding: var(--fs-space-6); box-shadow: var(--fs-shadow-1);
}
.fs-card--flat { box-shadow: none; }
.fs-card--tight { padding: var(--fs-space-4); }
.fs-card--interactive { cursor: pointer; transition: border-color var(--fs-transition), box-shadow var(--fs-transition), transform var(--fs-transition); }
.fs-card--interactive:hover { border-color: var(--fs-hairline-strong); box-shadow: var(--fs-shadow-2); }
.fs-card--dark { background: var(--fs-dark); border-color: var(--fs-dark-hairline); color: var(--fs-on-dark); }
.fs-card--dark h1, .fs-card--dark h2, .fs-card--dark h3 { color: var(--fs-on-dark); }
.fs-card--dark .fs-muted { color: var(--fs-on-dark-muted); }

.fs-panel { background: var(--fs-canvas); border: 1px solid var(--fs-hairline); border-radius: var(--fs-radius-md); display: flex; flex-direction: column; min-width: 0; }
.fs-panel__head { display: flex; align-items: center; justify-content: space-between; gap: var(--fs-space-3); padding: var(--fs-space-3) var(--fs-space-4); border-bottom: 1px solid var(--fs-hairline); min-height: 48px; }
.fs-panel__title { display: inline-flex; align-items: center; gap: var(--fs-space-2); font-size: var(--fs-caption-size); font-weight: 600; color: var(--fs-ink); }
.fs-panel__title .fs-icon { color: var(--fs-muted); }
.fs-panel__body { padding: var(--fs-space-4); }
.fs-panel__body--flush { padding: 0; }
.fs-panel__foot { padding: var(--fs-space-3) var(--fs-space-4); border-top: 1px solid var(--fs-hairline); font-size: var(--fs-caption-size); color: var(--fs-muted); }

/* ---- Stat tiles ----------------------------------------------------------- */

.fs-stat { display: flex; flex-direction: column; gap: 4px; padding: var(--fs-space-4); min-width: 0; }
.fs-stat__label { font-size: var(--fs-caption-size); color: var(--fs-muted); font-weight: 500; }
.fs-stat__value { font-family: var(--fs-font-display); font-size: 26px; font-weight: 600; color: var(--fs-ink); letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.fs-stat__value small { font-family: var(--fs-font-body); font-size: var(--fs-caption-size); font-weight: 500; color: var(--fs-muted); margin-left: 4px; letter-spacing: 0; }
.fs-stat__delta { display: inline-flex; align-items: center; gap: 4px; font-size: var(--fs-fine-size); font-weight: 600; }
.fs-stat__delta--up { color: var(--fs-success-text); }
.fs-stat__delta--down { color: var(--fs-danger-text); }
.fs-stat__delta--flat { color: var(--fs-muted); }
.fs-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); background: var(--fs-canvas); border: 1px solid var(--fs-hairline); border-radius: var(--fs-radius-md); overflow: hidden; }
.fs-stats > .fs-stat { border-right: 1px solid var(--fs-hairline); }
.fs-stats > .fs-stat:last-child { border-right: none; }

/* ---- Badges / status ------------------------------------------------------ */

.fs-badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; min-height: 24px; border-radius: var(--fs-radius-pill); font-size: var(--fs-fine-size); font-weight: 600; line-height: 1; white-space: nowrap; }
.fs-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
.fs-badge--neutral { background: var(--fs-surface-2); color: var(--fs-body); }
.fs-badge--info { background: var(--fs-primary-soft); color: var(--fs-on-primary-soft); }
.fs-badge--success { background: var(--fs-success-soft); color: var(--fs-success-text); }
.fs-badge--warning { background: var(--fs-warning-soft); color: var(--fs-warning-text); }
.fs-badge--danger { background: var(--fs-danger-soft); color: var(--fs-danger-text); }
.fs-badge--dark { background: var(--fs-dark-hairline-strong); color: var(--fs-on-dark); }
.fs-badge--live .fs-badge__dot { animation: fs-pulse 1.6s ease-out infinite; }
@keyframes fs-pulse { 0%, 100% { box-shadow: 0 0 0 0 currentColor; opacity: 1; } 60% { box-shadow: 0 0 0 5px transparent; opacity: .8; } }

/* ---- Avatars -------------------------------------------------------------- */

.fs-avatar { display: inline-grid; place-items: center; border-radius: 50%; background: var(--fs-primary-soft); color: var(--fs-on-primary-soft); font-weight: 600; font-family: var(--fs-font-display); flex-shrink: 0; letter-spacing: 0; }
.fs-avatar--sm { width: 28px; height: 28px; font-size: 11px; }
.fs-avatar--md { width: 40px; height: 40px; font-size: 14px; }
.fs-avatar--lg { width: 64px; height: 64px; font-size: 22px; }
.fs-avatar--dark { background: var(--fs-dark-3); color: var(--fs-on-dark); }

/* ---- Forms ----------------------------------------------------------------- */

.fs-field { display: flex; flex-direction: column; gap: 6px; }
.fs-label { font-size: var(--fs-caption-size); font-weight: 600; color: var(--fs-ink); }
.fs-hint { font-size: var(--fs-fine-size); color: var(--fs-muted); }
.fs-input, .fs-select, .fs-textarea {
    width: 100%; min-height: var(--fs-touch); padding: 0 var(--fs-space-4);
    border: 1px solid var(--fs-hairline-strong); border-radius: var(--fs-radius-sm);
    background: var(--fs-canvas); color: var(--fs-ink);
    font-family: var(--fs-font-body); font-size: var(--fs-body-size);
    transition: border-color var(--fs-transition-fast), box-shadow var(--fs-transition-fast);
}
.fs-textarea { padding: var(--fs-space-3) var(--fs-space-4); min-height: 88px; resize: vertical; line-height: 1.5; }
.fs-input::placeholder, .fs-textarea::placeholder { color: var(--fs-subtle); }
.fs-input:hover, .fs-select:hover, .fs-textarea:hover { border-color: var(--fs-subtle); }
.fs-input:focus, .fs-select:focus, .fs-textarea:focus, .fs-input:focus-visible { outline: none; border-color: var(--fs-primary); box-shadow: var(--fs-shadow-focus); }
.fs-input.invalid, .fs-input-error, .fs-input[aria-invalid="true"] { border-color: var(--fs-danger); }
.fs-error-text { display: flex; align-items: center; gap: 6px; font-size: var(--fs-fine-size); font-weight: 500; color: var(--fs-danger-text); }
.fs-input-wrap { position: relative; display: flex; align-items: center; }
.fs-input-wrap .fs-input { padding-right: 48px; }
.fs-input-wrap__btn { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); }

.fs-switch { position: relative; display: inline-flex; align-items: center; width: 44px; height: 26px; flex-shrink: 0; }
.fs-switch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; width: 100%; height: 100%; }
.fs-switch__track { position: absolute; inset: 0; border-radius: var(--fs-radius-pill); background: var(--fs-hairline-strong); transition: background-color var(--fs-transition-fast); }
.fs-switch__thumb { position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #FFFFFF; box-shadow: 0 1px 3px rgba(0,0,0,.30); transition: transform var(--fs-transition); }
.fs-switch input:checked ~ .fs-switch__track { background: var(--fs-primary); }
.fs-switch input:checked ~ .fs-switch__thumb { transform: translateX(18px); }
.fs-switch input:focus-visible ~ .fs-switch__track { box-shadow: var(--fs-shadow-focus); }

/* ---- Progress ------------------------------------------------------------- */

.fs-progress { width: 100%; height: 8px; border-radius: var(--fs-radius-pill); background: var(--fs-surface-3); overflow: hidden; }
.fs-progress__bar { height: 100%; border-radius: inherit; background: var(--fs-primary); transition: width var(--fs-transition-slow); }
.fs-progress--thin { height: 4px; }

/* ---- Segmented control ---------------------------------------------------- */

.fs-segmented { display: inline-flex; padding: 3px; gap: 2px; background: var(--fs-surface-2); border-radius: var(--fs-radius-sm); }
.fs-segmented button { min-height: 34px; padding: 0 var(--fs-space-3); border: none; border-radius: 8px; background: transparent; font-family: var(--fs-font-body); font-size: var(--fs-caption-size); font-weight: 600; color: var(--fs-muted); cursor: pointer; transition: background-color var(--fs-transition-fast), color var(--fs-transition-fast), box-shadow var(--fs-transition-fast); }
.fs-segmented button:hover { color: var(--fs-ink); }
.fs-segmented button[aria-pressed="true"], .fs-segmented button.active { background: var(--fs-canvas); color: var(--fs-ink); box-shadow: var(--fs-shadow-1); }

/* ---- List rows (settings, menus) ---------------------------------------- */

.fs-list { display: flex; flex-direction: column; background: var(--fs-canvas); border: 1px solid var(--fs-hairline); border-radius: var(--fs-radius-md); overflow: hidden; }
.fs-list__row { display: flex; align-items: center; gap: var(--fs-space-3); min-height: 56px; padding: var(--fs-space-3) var(--fs-space-4); border-bottom: 1px solid var(--fs-hairline); color: var(--fs-ink); background: transparent; border-left: none; border-right: none; border-top: none; width: 100%; text-align: left; font-family: var(--fs-font-body); font-size: var(--fs-body-size); text-decoration: none !important; cursor: pointer; transition: background-color var(--fs-transition-fast); }
.fs-list__row:last-child { border-bottom: none; }
.fs-list__row:hover { background: var(--fs-bg); color: var(--fs-ink); }
.fs-list__row--static { cursor: default; }
.fs-list__row--static:hover { background: transparent; }
.fs-list__ico { width: 36px; height: 36px; display: grid; place-items: center; border-radius: var(--fs-radius-sm); background: var(--fs-surface-2); color: var(--fs-body); flex-shrink: 0; }
.fs-list__text { display: flex; flex-direction: column; gap: 1px; min-width: 0; flex: 1; }
.fs-list__text strong { font-weight: 600; font-size: var(--fs-body-size); color: var(--fs-ink); }
.fs-list__text span { font-size: var(--fs-caption-size); color: var(--fs-muted); }
.fs-list__chev { color: var(--fs-subtle); flex-shrink: 0; }

/* ---- Overlays: scrim, drawer, sheet, toast -------------------------------- */

.fs-scrim { position: fixed; inset: 0; background: var(--fs-scrim); backdrop-filter: blur(2px); z-index: 60; animation: fs-fade 180ms var(--fs-ease-out); }
@keyframes fs-fade { from { opacity: 0; } to { opacity: 1; } }

.fs-drawer { position: fixed; top: 0; bottom: 0; right: 0; width: min(var(--fs-drawer-w), 88vw); background: var(--fs-canvas); z-index: 61; display: flex; flex-direction: column; box-shadow: var(--fs-shadow-3); animation: fs-slide-in 240ms var(--fs-ease-out); padding-bottom: env(safe-area-inset-bottom); }
@keyframes fs-slide-in { from { transform: translateX(24px); opacity: 0; } to { transform: none; opacity: 1; } }

.fs-sheet { position: fixed; left: 0; right: 0; bottom: 0; background: var(--fs-canvas); border-radius: var(--fs-radius-xl) var(--fs-radius-xl) 0 0; z-index: 61; box-shadow: var(--fs-shadow-3); padding: var(--fs-space-3) var(--fs-space-5) calc(var(--fs-space-6) + env(safe-area-inset-bottom)); animation: fs-sheet-in 260ms var(--fs-ease-out); max-height: 88vh; overflow-y: auto; }
.fs-sheet__grab { width: 40px; height: 4px; border-radius: 2px; background: var(--fs-hairline-strong); margin: 0 auto var(--fs-space-4); }
@keyframes fs-sheet-in { from { transform: translateY(32px); opacity: 0; } to { transform: none; opacity: 1; } }
@media (min-width: 720px) { .fs-sheet { left: 50%; right: auto; width: 480px; transform: translateX(-50%); border-radius: var(--fs-radius-xl); bottom: var(--fs-space-8); } @keyframes fs-sheet-in { from { transform: translate(-50%, 24px); opacity: 0; } to { transform: translate(-50%, 0); opacity: 1; } } }

.fs-toast { position: fixed; left: 50%; bottom: calc(var(--fs-space-6) + env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 70; display: inline-flex; align-items: center; gap: var(--fs-space-2); padding: 10px 16px; border-radius: var(--fs-radius-sm); background: var(--fs-toast-bg); color: var(--fs-toast-fg); font-size: var(--fs-caption-size); font-weight: 500; box-shadow: var(--fs-shadow-3); animation: fs-sheet-in 220ms var(--fs-ease-out); }

/* ---- Callouts ------------------------------------------------------------ */

.fs-callout { display: flex; gap: var(--fs-space-3); padding: var(--fs-space-3) var(--fs-space-4); border-radius: var(--fs-radius-sm); font-size: var(--fs-caption-size); line-height: 1.5; border: 1px solid transparent; }
.fs-callout .fs-icon { flex-shrink: 0; margin-top: 1px; }
.fs-callout--info { background: var(--fs-primary-soft); color: var(--fs-on-primary-soft); }
.fs-callout--warning { background: var(--fs-warning-soft); color: var(--fs-warning-text); }
.fs-callout--danger { background: var(--fs-danger-soft); color: var(--fs-danger-text); }
.fs-callout--success { background: var(--fs-success-soft); color: var(--fs-success-text); }

/* ---- Tables ---------------------------------------------------------------- */

.fs-table { width: 100%; border-collapse: collapse; font-size: var(--fs-caption-size); }
.fs-table th { text-align: left; font-size: var(--fs-fine-size); font-weight: 600; color: var(--fs-muted); padding: 10px var(--fs-space-4); border-bottom: 1px solid var(--fs-hairline); background: var(--fs-bg); white-space: nowrap; position: sticky; top: 0; }
.fs-table td { padding: 12px var(--fs-space-4); border-bottom: 1px solid var(--fs-hairline); color: var(--fs-body); vertical-align: middle; }
.fs-table tbody tr:last-child td { border-bottom: none; }
.fs-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.fs-table tr.is-clickable { cursor: pointer; }
.fs-table tr.is-clickable:hover td { background: var(--fs-bg); }
.fs-table tr.is-clickable:focus-visible { outline: none; }
.fs-table tr.is-clickable:focus-visible td { background: var(--fs-primary-soft); }

/* ---- Sections (marketing) -------------------------------------------------- */

.fs-section { padding-block: var(--fs-space-10); }
.fs-section--tight { padding-block: var(--fs-space-9); }
.fs-section--dark { background: var(--fs-dark); color: var(--fs-on-dark); }
.fs-section--dark h1, .fs-section--dark h2, .fs-section--dark h3 { color: var(--fs-on-dark); }
.fs-section--dark .fs-muted { color: var(--fs-on-dark-muted); }
.fs-section--dark a:not(.fs-btn) { color: var(--fs-accent-on-dark); }
.fs-section--parchment, .fs-section--bg { background: var(--fs-bg); }

/* ---- Misc ------------------------------------------------------------------- */

.fs-icon { display: inline-block; flex-shrink: 0; vertical-align: middle; }
.fs-divider { height: 1px; background: var(--fs-hairline); border: none; margin: 0; }
.fs-scroll { overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--fs-hairline-strong) transparent; }
.fs-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.fs-scroll::-webkit-scrollbar-thumb { background: var(--fs-hairline-strong); border-radius: 4px; }
.fs-brand-mark { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--fs-brand-gradient); color: var(--fs-on-brand); font-family: var(--fs-font-display); font-weight: 700; font-size: 17px; flex-shrink: 0; letter-spacing: 0; }
.fs-brand-mark--sm { width: 30px; height: 30px; font-size: 14px; border-radius: 8px; }
.fs-brand-mark--lg { width: 44px; height: 44px; font-size: 20px; border-radius: 12px; }
.fs-brand-mark .fs-logo { width: 66%; height: auto; display: block; }
.fs-logo { display: inline-block; vertical-align: middle; }
.fs-hud { background: var(--fs-hud-bg); backdrop-filter: var(--fs-hud-blur); -webkit-backdrop-filter: var(--fs-hud-blur); border: 1px solid var(--fs-hud-border); border-radius: var(--fs-radius-md); box-shadow: var(--fs-shadow-2); }
.fs-hud--dark { background: var(--fs-hud-bg-dark); border-color: var(--fs-dark-hairline-strong); color: var(--fs-on-dark); }
.fs-skeleton { background: linear-gradient(90deg, var(--fs-surface-2) 25%, var(--fs-surface-3) 50%, var(--fs-surface-2) 75%); background-size: 200% 100%; animation: fs-shimmer 1.4s infinite; border-radius: var(--fs-radius-xs); }
@keyframes fs-shimmer { to { background-position: -200% 0; } }
.fs-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--fs-space-2); padding: var(--fs-space-8) var(--fs-space-5); text-align: center; color: var(--fs-muted); font-size: var(--fs-caption-size); }
.fs-empty .fs-icon { color: var(--fs-subtle); margin-bottom: var(--fs-space-2); }
.fs-empty strong { color: var(--fs-ink); font-size: var(--fs-body-size); }